Mohanlal and Mukesh play two close personal friends as well as bitter political foes at the same time. 'Peruchazhi' plots the political tricks and games between Viswanathan (Mohanlal), an upcoming politician and Minister Raghavan (Mukesh).Meanwhile Viswanahan has to go to America during an election. The political graph of one of the Governors who is a candidate in the election is at an all time low and Viswanathan's purpose is to make the graph soars high and to make this Governor victorious.Though Viswanathan knows all the tricks, he does not know English. 'Peruchazhi' hilariously picturizes Viswanathan's American adventures and Minister Raghavan's efforts to counter Viswanathan's tricks.